Are you really here, or are you a string of code running on a supercomputer built by an advanced civilization? This deep dive traces the simulation hypothesis from its ancient roots in Zhuangzi's butterfly dream, Plato's cave, Aztec cosmology, and Descartes' evil demon, through Konrad Zuse's 1969 Calculating Space, Simulacron-3, and The Matrix, to Elon Musk's claim that the odds we live in base reality are one in billions. The core of the episode is Nick Bostrom's 2003 simulation argument and its famous trilemma: either civilizations go extinct before reaching a post-human stage, they lose interest in running ancestor simulations, or we are almost certainly living in one. The whole structure rests on computationalism, the assumption that consciousness is substrate-independent software.

The hosts then dig into the fierce pushback from physic ...